Loaf-forming machine.



I. STREIGH. LOAF FORMING MACHINE. APPLICATION FILED mm: 30, 1910.

1,043,979; Patented Nov. 12,1912.

1. L-ZK 5' a e 3 4z 3. az'fl 4 witmeooeo' Q EKE'MW Fr es.

FRANK STREICH, OF 8'1. LOUIS, MISSOURI.

LOAF-FORMING macmivn.

To all whom it mm..-

Be it known that I, FRANK S'rnErcH, citizen of the United States, residing at St.

v views an apron roller 8, all of said rollers Louis, State of Missouri, have invented certain new and useful. Improvements in Loaf- Forming Machines, of which the following is a specification. v

.My invention relates to machines for forming loaves, and the chief objects of the improvements which constitute the sub] ect matter of this application for patent arz-to provide a machine adapted to automaticall form loaves of a desirable shape from doug previously divided into predetermined quantities; to furnish means for rolling each d1- vided portion of dough into a sheet of predetermined thickness; to provide means for coiling the sheet thus formed into a roll; and to provide means for molding the roll so formed into the required shape. Other objects of this invention are to supply removable and interchan eable mold boards; and to provide means or automatically conveying the formed rolls to a position where they will be subjected to the action of the mold board.

The desired objects are attained by employing the apparatus illustrated in the accompanying drawing in which the details of construction are shown in the following Figure 1 is a side elevation; Fig. 2- is a vertical median section; Fig. 3--is a .front.

elevation with some of the parts removed, a

portion being in section, the position of the cutting plane being on the line w-a of Fig.

-2; Figs. 4 and 5 are a plan and side elevation respectively of an adjustable bearing for one of the rollers, and Fig. 6 is a front elevation of the curved loaf guide.

Referring to the details of the drawing, the numeral 1 indicates a casing supported on a base 2, provided with side walls 3 with the usual hopper 4 arranged above, and having an aperture 5 in the front wall. Arranged beneath the hopper are feed rollers 6, 7, and directly under the rear roller 7 is being journaledl in the walls 3. Situated between the feed rollers and the said apron roller is a pressure roller 9,-sjournaled in bearings 11 adjustably secured to the side walls. The rollers 8 and 7 are rotated in opposite directions from a pinion 12 by means of gears 13 and 14 respectively mounted on said rollers. The roller 6 is driven in a direction Specification of Letters Patent.

Application filed June 30,. 1910. Serial No. 569,885.

, An idle a tive ends of a shaft 29 which is.

. pivotal connections with shaft Patented Nov. as, rare.

opposite to that chain 17 engaging sprockets on said rollers.

'ljhe rollers are all rotated at the same perlpheral speed. The feed rollers 6, 7, are furnished with the usual scrapers 18 and 19. I ron roller 20 isjournaled in bearlugs. 21 a justably secured to the casing and an endless apron 22 carried by the apron roller 8 travels thereover and under the small guide roller 23, and also under the apron guide board 24' which is secured between the Walls of the casing.

a yoke 25 located on the outside of the casing is pivotally mounted on the extended ends of shaft 26 of roller 6, its front portion extending across, the front end of the casin and provided with a projecting arm 2 whereon a weight 30 is adjustable. The legs 28 of the yoke form bearings for the respecextended through slots 31 formed in the side walls of -the casing and carries a forming roller 32.

A sprocket wheel 33 on shaft 29 is driven by a chain 34 from a Wheel 35 on shaft 26 for rotating roller 32 at the same peripheral speed as that of rollers 6, 7, 8 and 9. Branch arms 36 extended from the yoke 25 near its 26 carry the respect ve ends of shaft 37 which is movable in slots 38 formed in the side walls of the casmg, and wliereon an idle tripping roller 39 is mounted Within the casing.

A curved loaf guide 41 fornied withcars 42 which are movable. in vertical slots 43 formed in the opposite walls of the casing is vertically adjustable within the casing by means of adjusting screws 44. A mold board 45 removably secured at'its rear end to the guide41 by a pin 40 or other suitable means forms a forward continuation thereof a short distance below the endless apron 22' and is adjustably supported near its front end on screws 46. Said mold board may be transversely concaved on its upper surface, as shown in Fig. 3, for forming oval shaped loaves (as shown by dotted lines) or a number of mold boards with different surface patterns may be used interchangeably to form loaves of difi'erent shapes as desired.

operation, the proper quantity of dough for a loaf is placed in the hopper and moves the idle tripping roller 39 in a forward direction in its passage thereunder.

It thence passes between and is rolled into a thick sheet by the feeding rollers 6 and 7,

' which sheet is continued and rolled thinner between rollers 7 and 9. As the sheet of dough is being delivered on the apron from roller 9 it is carried thereby partly around roller 8 and in contact with the .forming roller 32. The action of rollers 9, 8, and-32 serves to form the sheet of dough into a spiral roll asshown at 47 in Fig. 2. When the lump of dough for another loaf is placed in the hopper the tripping roller is again moved thereby in a forward direction and in an arc concentric with roller 6 whereby the yoke is oscillated on its pivot suiii- 'ciently. to raise the forming roller 32 for the passage thereunder of the spiral'roll47.

' The action'of the apron rolls the spiral roll as desired.

4:7 in a forward direction in contact with the curved guide and the moldboard whereby it is formed into the desired shape and compactness and delivered inthe curved apron 48 ready for removal to the oven. In this manner the lumps of dough successively delivered fin-the hopper move the tripping roll and actuate the yoke with the forming roll to deliver the spiral roll formed from the preceding lump into the passage 49 between the apron and the curved guide and mold board. The apron guide board 24 during the passage of the spiral roll thereunder along the mold board. The thickness of the sheet of dough may be regulated as desired by the adjustment of roller 9 in relation to roller 7. The thinner said sheet of dough is made the-more compact will be spiral roll made therefrom.- The weight 30 may be adjusted on the arm 27 of the yoke for partially counterbala-ncing the weight of the tripping; and forming rollers thereon T e curved guide and the mold board may be adjusted by means of the ad justing screws to ada t the de th of pas sage 49 to' spiral ro ls of di erent size. The face of pressure roller 9 may be kn nrled or covered with canvas if desired.

Having thusdescribed my invention what I claim as new, is 2- 1. In a loaf forming machine, the combination of a. feed roller, an apron roller, a pressure roller adjustable concentric therewith and in relation to the feed roller, a forming roller in gravity contact with the apron roller, and means for driving said rollers at'substantially the same peripheral speed.

therein, 'a gravity forming roller arranged to ranged for controllin the pressure thereof .toward the apron ro ler, and means coopcrating with the f ed roller for automatiapron roller. 3; A loaf casing, a yoke trunnioned thereon, a feed roller journaled in the casing, a tripping roller journaled on the yoke and arranged to cooperate therewith, a gravity forming roller journaled on the yoke, and-a weight ter-b'alancing the weight of the forming roller.

and delivering thereon a sheetof dough, a oke trunnioned at a fixed point, a ravlty forming roller journaled thereon an coiipcrating. with the apron, and a weight adjustable on the yoke for-partially counterba-l? ancing the forming roller- 5. In a loaf forming machine, the combination of a tripping roller, a forming roller 'movable thereby, an. apron roller, an endless apron carried thereby, 'a curved guide and a mold board adjustable in relation to the apron. 6. A loaf forming machine comprising a in the presence of two witnesses. v

FRANK STREICH. Witnesses: I

- F. BENJAMIN Y H. Dr: Los Hiemiv.

2. In a loaf forming machine, the combination of a casing provided with a hopper, a feed roller and an apron roller journaled 4. A loaf forming machine comprising a drlven endless apron, means for forming cooperate w1th the apron roller, means ar-- cally moving the forming roller from the forming machine comprising a adjustable on thelyoke for partially counadjustable in relation to the apron roller,-

driven endless apron, a forming board provided with a curved'guide and ad'ustable Intestimony whereof I 'aflix my signature 

